Whole game feedback from O'Reilly (#1057)
* Redraw data science process diagrams * Polishing the whole game * Add reference to TMWR * Respond to visualization feedback * Minor changes * Better integrate workflow-scripts chapter * Minor getting help polishing * Update investing in yourself links * Redraw RStudio screenshots * More scripts/projects polishing Co-authored-by: Mine Cetinkaya-Rundel <cetinkaya.mine@gmail.com>
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